Here is a very unusual  silver brooch by a Danish silversmith who used a script monogram which I read as H C, standing for Henry Clemmensen,active from 1946 to 66.  This brooch is comprised of three layers of circles, topped by 3 balls, in the popular mid-century style. 

Condition:Excellent, no visibe damage, c-clasp and straight pin.

Marks: 830S, HC

Size:  4.5 cm (1.7")

Year: 1950s